Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 68 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a sheet of white paper (c) a balloon (d) a magnet
2. 2.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) look at it through glass (d) never look at the Sun
3. 3.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a mirror (d) a clear glass of water
4. 4.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
5. 5.🌈 How many colours do we name in a rainbow (VIBGYOR)?
6. 6.🌈 In VIBGYOR, what number colour is orange?
7. 7.🌈 In VIBGYOR, what number colour is green?
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
9. 9.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) a balloon (d) a clear glass of water
11. 11.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) turmeric powder (d) a sunny window
12. 12.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
13. 13.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) water splits the light (c) the water is coloured (d) the glass is painted
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) True (b) False
15. 15.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) snow falling (d) a small rainbow
16. 16.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a magnet (c) a sheet of white paper (d) a clear glass of water
17. 17.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
18. 18.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
19. 19.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a balloon (d) a mirror
20. 20.🌈 In VIBGYOR, what number colour is violet?
21. 21.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it turns brighter (c) it floats away (d) the rainbow fades
22. 22.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny drops of water (c) tiny bits of dust (d) many colours mixed
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the same window (c) the amount of water
24. 24.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a clear glass of water (d) a mirror
25. 25.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) brightness of rainbow (b) the time of day (c) the same glass (d) the amount of water
27. 27.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) False (b) True
28. 28.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) yeast (d) bright sunlight
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) False (b) True
30. 30.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
31. 31.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) orange (c) yellow (d) red
32. 32.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
33. 33.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
34. 34.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) yeast (c) a clear glass of water (d) bright sunlight
37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a clear glass of water (d) a battery cell
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) True (b) False
39. 39.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
40. 40.🌈 In VIBGYOR, what number colour is red?

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